Cobnelius tenney



(No Model.)

C. T'E'N'NEY.

ROD FOR SAW FRAMES. N0.'310,866. Patented Jan. 13, 1885.

UNrrn STATES arnarr OFFICE.

CORNELIUS TENNEY, OF BROOKLYN, NEV YORK, ASSIGNOR TO THE C. TENNEYHABDVVARE COMPANY, OF SAME PLACE.

ROD FOR SAW-FRAMES.

SPECIFICATION forming part of Letters'Patent No. 310,866, dated January13,1885,

Application filed July 8, 1884.

To all whom it may concern.-

Be it known that I, OoRNnLIUs TENNEY, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Bods for Saw-Frames, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

My invention relates to improvements in tension-rods for saws, and hasfor its object to lessen the number of parts of which said rods areusually composed, to secure greater strength and durability, andsimplify and cheapen their manufacture.

The invention consists of the combination and arrangement of parts,substantially as hereinafter fully described and claimed.

In the drawings, Figure 1 represents a finished tension-rod embodying myimprovements in position upon a saw-frame. Figs. 2 to 7, inclusive,represent the rod-blank at different stages of its production.

Similar letters of reference in the several drawings denote like orcorresponding parts.

Referring to thedrawings, A designates the rod, consisting of the twoparts B B, provided at their adjacent ends b I) with male screwthreads;and B ,an interposed link having its ends provided with female screws,whereby the link can be turned upon the parts B B to increase thetension of the latter. Each of the rods B B consists of a single pieceof wire (see Fig. 2) which is bent at its middle, as shown in Fig. 3,and at its points a, (see Fig. 4,) to form loops N, that encircle theupper ends of the saw-frame, and of straight parts at m, which aretwisted together, as shown in Fig. 5, and

(No model.)

have their ends welded together and provided with male screw-threads, asshown in Figs. 6 4c and 7. It will be seen that the parts B B have greatrigidity, strength, and durability,

as well as neatness in appearance and simplicity in form. If desired,the welded ends -b I), having the screw-threads, may be made of 45larger diameter than the combined diameter of the folded wire by weldingsaid ends together with a strip of metal, and then finishing said endswith screw-threads. If desired, the twist of the parts B B may be inoppo- & site directions, so that when said parts are applied to theframe the turning of the cen tral link, B to increase the tension of therod will be in the direction of the twist.

I am aware that it is not' new to make the body or shank of a bolt of anumber of wires so twisted together as to give the bolt a certain degreeof elasticity to avoid the injurious effects caused by heavy projectilesstriking the plate.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent of the United States, is-

A tensioirrod for saws, made of wire, each part folded upon itself andits ends twisted 6 together, forming a loop, and welded and threaded, incombination with an intermediate threaded tensi0n-link, as herein shownand described.

In testimony whereof I affix my signature in presence of two witnesses.

CORNELIUS TENNEY.

Witnesses:

FRANCIS E. ROGERS, THOMAS M. WILLIER.

